There is a problem that may be cause by these changes, that being not
closing the handle, since the loop will run forever, I would have to
close the loop on some sort of exit condition. I am not sure if the
handle closes if the process is killed, if so, then I guess it should be
fine.

This reverts commit 5a9cb08.

This reverts commit e2ea108.

I have no idea why exactly but the build errors only got fixed when I
changed the order of the includes in AHRSInputIOProcessor.hpp.

I added some comments explaining how I am capturing the bytes of the
Euler Angles from the message in the buffer. Quick version here, I first
capute a 2 times the size of the message into a buffer, I then search
for the begining of the message, when I find it, I then jump to the
index where the Angles are stored. I then add each group of 8 bytes for
each angle backwords into arrays to then be converted. I add them in
backwords since the AHRS is big endian and the computer we are
converting them to doubles on is little endian. After each angle's 8
bytes are storred in an array, I then cast them into doubles, where they
can then be sent. Hopefully that makes sense, feel free to ask me any
questions about it.

I fixed the math for getting the bytes for the Angles to make a bit easier to
understand. I also clarfied my comments a bit to try and make them
clearer with the explanation.

I further clarified my comments and also renamed index to dataStart to
make it more clear what it was.

Changed "index" to "dataStart" in diagram to make it more clear.

Changed the for loop to loop backwords itself so that the equations for
actually getting the bytes only use +'s. They are still basically the
same equations, but hopefully they are a little more intuitive...